View allAll Photos Tagged Device
In preparation for the FAFM photo for "Smoke", I had to make this make-shift 'smoke producing device' to create the smoke for the photo. As always, I have the correct 'supervision' so as to prevent accidents. The string produced a longer trail of smoke so I could take multiple photos and then choose the best one for the FAFM group. While not 'perfect' (and even a two-wick candle didn't suffice with sufficient smoke after extinguishing) this string would smolder for over a minute. The can is a clean tuna can, and the wire is 14-gauge copper wire.
JW Library is now available for download at the three major app stores, and a fourth is on the way. Download it for your mobile device here:
For more information, click the link below at JW.org
"JW Library is an official app produced by Jehovah’s Witnesses. It includes six Bible translations.
The New World Translation of the Holy Scriptures (2013 revision) published by Jehovah’s Witnesses. This version contains:
An introduction that answers 20 Bible questions.
An outline of contents at the beginning of each Bible book.
Footnotes and cross references.
An index of Bible words and a glossary of terms.
An appendix that includes maps, charts, and timelines, which help you gain the most from your Bible reading.
The New World Translation of the Holy Scriptures—With References (1984 revision)
The Kingdom Interlinear Translation of the Greek Scriptures. This Bible contains the Greek text edited by B. F. Westcott and F. J. A. Hort. Between the lines you will find a word-for-word English translation.
The Bible in Living English (Steven T. Byington)
The American Standard Version
The King James Version"
Click the JW Library link for more information, app navigation instructions, and app support.
After the fireworks were over, huge bright lights were turned on so the enormous crowd could find their way out of the park. We were on the water side of the hill, so it was still fairly dark where we were. However, the light of electronic devices lit the faces of my young Korean friends. The Gas Works are illuminated in the background.
OnOne Acid Frame
This Upside-Down Church is located in Calgary, Alberta at 803 – 24 Ave. S.E.
Dedication plaque reads:
Title: Device To Root Out Evil, 1997
Artist: Dennis Oppenheim
Material: Galvanized Structural Steel, Anodized Perforated Aluminum, Red Venetian Glass
This exhibit has been facilitated by the Glenbow Museum with the generous support of the Benefic Foundation, Vancouver, B.C., owner of the work.
THE TORODE GROUP IS PROUD TO EXHIBIT
'THE DEVICE TO ROOT OUT EVIL'
The TORODE Group of Companies.
OnlyContest - Upside down - 2020-11-16
ClickContest - 3561 - 2021-01-30
Medical device Contract Manufacturing Organizations (CMOs) Mergers and Acquisitions: Buyer’s view and standpoint
Medical Device CMO sector is witnessing an increased merger and acquisition in the recent past; close to 30% of top CMO players were involved in either M&A or expansion plans in e...
advantage-procurement.com/medical-device-contract-manufac...
Stagecoach Highlands operated battery-electric Yutong E10 SG72 NBF - 63109 - is pictured on Union Street in Inverness having completed a service on route 6.
This vehicle wears the 2020 Stagecoach Local livery and is one of 25 buses of its type new to Inverness in late 2022 and early 2023. Route 6 has since been withdrawn and replaced by a modified series of routes numbered 5, 5A & 5B.
Date Taken: May 10th, 2024
Device Used: iPhone 12 Pro Max
Date Uploaded: December 3rd, 2025
Upload Number: 1994
Interested in seeing some bus videos? You'll find buses both real and virtual on my YouTube channel, as well as other cool bus-themed stuff too! - www.youtube.com/@ZZ9sTransport
© ZZ9's Transport Photography (ZZ9 Productions). All Rights Reserved. Modification, redistribution, reuploading and the like is prohibited without prior written permission from myself.
at first i thought it was written in french, dog of a panel to make but back lighting came out surprisingly well. hardest part is making the windows grey, not yellow and green like everyone else does, and zero light bleed through between chambers. still needs some work
rheoscopic fluid constantly agitated by a magnetic stirring base covered in glitter felt, pieces of which were also used to decorate the flask containing the fluid. SOLD
Collection:
Images from the History of Medicine (IHM)
Format:
Still image
Extent:
1 photoprint.
NLM Unique ID:
101405905
NLM Image ID:
A022411
Permanent Link:
Lynx Optare Tempo FD54JYF, snapped in Hunstanton bus station and framed appropriately by trees in the park opposite
'Orrible little things the 12s. Their only redeeming feature being that you could prefix the fleet number with a buffer grease 3 and giggle childishly. (3)1216 arrives at some shack I didn't write down on some train I didn't board. Portugal May 1993ish.
P1060985PSXstrtn
For maximum effect, click the image, to go into the Lightbox, to view at the largest size; or, perhaps, by clicking the expansion arrows at top right of the page for a Full Screen view.
Don't use or reproduce this image on Websites/Blog or any other media without my explicit permission.
© All Rights Reserved - Jim Goodyear 2017.
For my coming Jabba's palace I've built some technical device. I've made an instruction to see how I used some SNOT-techniques.
Spaceflight (or space flight) is ballistic flight into or through outer space. Spaceflight can occur with spacecraft with or without humans on board. Yuri Gagarin of the Soviet Union was the first human to conduct a spaceflight. Examples of human spaceflight include the U.S. Apollo Moon landing and Space Shuttle programs and the Russian Soyuz program, as well as the ongoing International Space Station. Examples of unmanned spaceflight include space probes that leave Earth orbit, as well as satellites in orbit around Earth, such as communications satellites. These operate either by telerobotic control or are fully autonomous.
Spaceflight is used in space exploration, and also in commercial activities like space tourism and satellite telecommunications. Additional non-commercial uses of spaceflight include space observatories, reconnaissance satellites and other Earth observation satellites.
A spaceflight typically begins with a rocket launch, which provides the initial thrust to overcome the force of gravity and propels the spacecraft from the surface of the Earth. Once in space, the motion of a spacecraft – both when unpropelled and when under propulsion – is covered by the area of study called astrodynamics. Some spacecraft remain in space indefinitely, some disintegrate during atmospheric reentry, and others reach a planetary or lunar surface for landing or impact.
History
Main articles: History of spaceflight and Timeline of spaceflight
Tsiolkovsky, early space theorist
The first theoretical proposal of space travel using rockets was published by Scottish astronomer and mathematician William Leitch, in an 1861 essay "A Journey Through Space".[1] More well-known (though not widely outside Russia) is Konstantin Tsiolkovsky's work, "Исследование мировых пространств реактивными приборами" (The Exploration of Cosmic Space by Means of Reaction Devices), published in 1903.
Spaceflight became an engineering possibility with the work of Robert H. Goddard's publication in 1919 of his paper A Method of Reaching Extreme Altitudes. His application of the de Laval nozzle to liquid fuel rockets improved efficiency enough for interplanetary travel to become possible. He also proved in the laboratory that rockets would work in the vacuum of space;[specify] nonetheless, his work was not taken seriously by the public. His attempt to secure an Army contract for a rocket-propelled weapon in the first World War was defeated by the November 11, 1918 armistice with Germany. Working with private financial support, he was the first to launch a liquid-fueled rocket in 1926. Goddard's paper was highly influential on Hermann Oberth, who in turn influenced Wernher von Braun. Von Braun became the first to produce modern rockets as guided weapons, employed by Adolf Hitler. Von Braun's V-2 was the first rocket to reach space, at an altitude of 189 kilometers (102 nautical miles) on a June 1944 test flight.[2]
Tsiolkovsky's rocketry work was not fully appreciated in his lifetime, but he influenced Sergey Korolev, who became the Soviet Union's chief rocket designer under Joseph Stalin, to develop intercontinental ballistic missiles to carry nuclear weapons as a counter measure to United States bomber planes. Derivatives of Korolev's R-7 Semyorka missiles were used to launch the world's first artificial Earth satellite, Sputnik 1, on October 4, 1957, and later the first human to orbit the Earth, Yuri Gagarin in Vostok 1, on April 12, 1961.[3]
At the end of World War II, von Braun and most of his rocket team surrendered to the United States, and were expatriated to work on American missiles at what became the Army Ballistic Missile Agency. This work on missiles such as Juno I and Atlas enabled launch of the first US satellite Explorer 1 on February 1, 1958, and the first American in orbit, John Glenn in Friendship 7 on February 20, 1962. As director of the Marshall Space Flight Center, Von Braun oversaw development of a larger class of rocket called Saturn, which allowed the US to send the first two humans, Neil Armstrong and Buzz Aldrin, to the Moon and back on Apollo 11 in July 1969. Over the same period, the Soviet Union secretly tried but failed to develop the N1 rocket to give them the capability to land one person on the Moon.
Phases
Launch
Main article: Rocket launch
See also: List of space launch system designs
Rockets are the only means currently capable of reaching orbit or beyond. Other non-rocket spacelaunch technologies have yet to be built, or remain short of orbital speeds. A rocket launch for a spaceflight usually starts from a spaceport (cosmodrome), which may be equipped with launch complexes and launch pads for vertical rocket launches, and runways for takeoff and landing of carrier airplanes and winged spacecraft. Spaceports are situated well away from human habitation for noise and safety reasons. ICBMs have various special launching facilities.
A launch is often restricted to certain launch windows. These windows depend upon the position of celestial bodies and orbits relative to the launch site. The biggest influence is often the rotation of the Earth itself. Once launched, orbits are normally located within relatively constant flat planes at a fixed angle to the axis of the Earth, and the Earth rotates within this orbit.
A launch pad is a fixed structure designed to dispatch airborne vehicles. It generally consists of a launch tower and flame trench. It is surrounded by equipment used to erect, fuel, and maintain launch vehicles. Before launch, the rocket can weigh many hundreds of tonnes. The Space Shuttle Columbia, on STS-1, weighed 2,030 tonnes (4,480,000 lb) at take off.
Reaching space
The most commonly used definition of outer space is everything beyond the Kármán line, which is 100 kilometers (62 mi) above the Earth's surface. The United States sometimes defines outer space as everything beyond 50 miles (80 km) in altitude.
Rockets are the only currently practical means of reaching space. Conventional airplane engines cannot reach space due to the lack of oxygen. Rocket engines expel propellant to provide forward thrust that generates enough delta-v (change in velocity) to reach orbit.
For manned launch systems launch escape systems are frequently fitted to allow astronauts to escape in the case of emergency.
Alternatives
Main article: Non-rocket spacelaunch
Many ways to reach space other than rockets have been proposed. Ideas such as the space elevator, and momentum exchange tethers like rotovators or skyhooks require new materials much stronger than any currently known. Electromagnetic launchers such as launch loops might be feasible with current technology. Other ideas include rocket assisted aircraft/spaceplanes such as Reaction Engines Skylon (currently in early stage development), scramjet powered spaceplanes, and RBCC powered spaceplanes. Gun launch has been proposed for cargo.
Leaving orbit
This section possibly contains original research. Relevant discussion may be found on Talk:Spaceflight. Please improve it by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed. (June 2018) (Learn how and when to remove this template message)
Main articles: Escape velocity and Parking orbit
Launched in 1959, Luna 1 was the first known man-made object to achieve escape velocity from the Earth.[4] (replica pictured)
Achieving a closed orbit is not essential to lunar and interplanetary voyages. Early Russian space vehicles successfully achieved very high altitudes without going into orbit. NASA considered launching Apollo missions directly into lunar trajectories but adopted the strategy of first entering a temporary parking orbit and then performing a separate burn several orbits later onto a lunar trajectory. This costs additional propellant because the parking orbit perigee must be high enough to prevent reentry while direct injection can have an arbitrarily low perigee because it will never be reached.
However, the parking orbit approach greatly simplified Apollo mission planning in several important ways. It substantially widened the allowable launch windows, increasing the chance of a successful launch despite minor technical problems during the countdown. The parking orbit was a stable "mission plateau" that gave the crew and controllers several hours to thoroughly check out the spacecraft after the stresses of launch before committing it to a long lunar flight; the crew could quickly return to Earth, if necessary, or an alternate Earth-orbital mission could be conducted. The parking orbit also enabled translunar trajectories that avoided the densest parts of the Van Allen radiation belts.
Apollo missions minimized the performance penalty of the parking orbit by keeping its altitude as low as possible. For example, Apollo 15 used an unusually low parking orbit (even for Apollo) of 92.5 nmi by 91.5 nmi (171 km by 169 km) where there was significant atmospheric drag. But it was partially overcome by continuous venting of hydrogen from the third stage of the Saturn V, and was in any event tolerable for the short stay.
Robotic missions do not require an abort capability or radiation minimization, and because modern launchers routinely meet "instantaneous" launch windows, space probes to the Moon and other planets generally use direct injection to maximize performance. Although some might coast briefly during the launch sequence, they do not complete one or more full parking orbits before the burn that injects them onto an Earth escape trajectory.
Note that the escape velocity from a celestial body decreases with altitude above that body. However, it is more fuel-efficient for a craft to burn its fuel as close to the ground as possible; see Oberth effect and reference.[5] This is another way to explain the performance penalty associated with establishing the safe perigee of a parking orbit.
Plans for future crewed interplanetary spaceflight missions often include final vehicle assembly in Earth orbit, such as NASA's Project Orion and Russia's Kliper/Parom tandem.
Astrodynamics
Main article: Orbital mechanics
Astrodynamics is the study of spacecraft trajectories, particularly as they relate to gravitational and propulsion effects. Astrodynamics allows for a spacecraft to arrive at its destination at the correct time without excessive propellant use. An orbital maneuvering system may be needed to maintain or change orbits.
Non-rocket orbital propulsion methods include solar sails, magnetic sails, plasma-bubble magnetic systems, and using gravitational slingshot effects.
Ionized gas trail from Shuttle reentry
Recovery of Discoverer 14 return capsule by a C-119 airplane
Transfer energy
The term "transfer energy" means the total amount of energy imparted by a rocket stage to its payload. This can be the energy imparted by a first stage of a launch vehicle to an upper stage plus payload, or by an upper stage or spacecraft kick motor to a spacecraft.[6][7]
Reentry
Main article: Atmospheric reentry
Vehicles in orbit have large amounts of kinetic energy. This energy must be discarded if the vehicle is to land safely without vaporizing in the atmosphere. Typically this process requires special methods to protect against aerodynamic heating. The theory behind reentry was developed by Harry Julian Allen. Based on this theory, reentry vehicles present blunt shapes to the atmosphere for reentry. Blunt shapes mean that less than 1% of the kinetic energy ends up as heat that reaches the vehicle, and the remainder heats up the atmosphere.
Landing
The Mercury, Gemini, and Apollo capsules all splashed down in the sea. These capsules were designed to land at relatively low speeds with the help of a parachute. Russian capsules for Soyuz make use of a big parachute and braking rockets to touch down on land. The Space Shuttle glided to a touchdown like a plane.
Recovery
After a successful landing the spacecraft, its occupants and cargo can be recovered. In some cases, recovery has occurred before landing: while a spacecraft is still descending on its parachute, it can be snagged by a specially designed aircraft. This mid-air retrieval technique was used to recover the film canisters from the Corona spy satellites.
Types
Uncrewed
See also: Uncrewed spacecraft and robotic spacecraft
Sojourner takes its Alpha particle X-ray spectrometer measurement of Yogi Rock on Mars
The MESSENGER spacecraft at Mercury (artist's interpretation)
Uncrewed spaceflight (or unmanned) is all spaceflight activity without a necessary human presence in space. This includes all space probes, satellites and robotic spacecraft and missions. Uncrewed spaceflight is the opposite of manned spaceflight, which is usually called human spaceflight. Subcategories of uncrewed spaceflight are "robotic spacecraft" (objects) and "robotic space missions" (activities). A robotic spacecraft is an uncrewed spacecraft with no humans on board, that is usually under telerobotic control. A robotic spacecraft designed to make scientific research measurements is often called a space probe.
Uncrewed space missions use remote-controlled spacecraft. The first uncrewed space mission was Sputnik I, launched October 4, 1957 to orbit the Earth. Space missions where other animals but no humans are on-board are considered uncrewed missions.
Benefits
Many space missions are more suited to telerobotic rather than crewed operation, due to lower cost and lower risk factors. In addition, some planetary destinations such as Venus or the vicinity of Jupiter are too hostile for human survival, given current technology. Outer planets such as Saturn, Uranus, and Neptune are too distant to reach with current crewed spaceflight technology, so telerobotic probes are the only way to explore them. Telerobotics also allows exploration of regions that are vulnerable to contamination by Earth micro-organisms since spacecraft can be sterilized. Humans can not be sterilized in the same way as a spaceship, as they coexist with numerous micro-organisms, and these micro-organisms are also hard to contain within a spaceship or spacesuit.
Telepresence
Telerobotics becomes telepresence when the time delay is short enough to permit control of the spacecraft in close to real time by humans. Even the two seconds light speed delay for the Moon is too far away for telepresence exploration from Earth. The L1 and L2 positions permit 400-millisecond round trip delays, which is just close enough for telepresence operation. Telepresence has also been suggested as a way to repair satellites in Earth orbit from Earth. The Exploration Telerobotics Symposium in 2012 explored this and other topics.[8]
Human
Main article: Human spaceflight
ISS crew member stores samples
The first human spaceflight was Vostok 1 on April 12, 1961, on which cosmonaut Yuri Gagarin of the USSR made one orbit around the Earth. In official Soviet documents, there is no mention of the fact that Gagarin parachuted the final seven miles.[9] Currently, the only spacecraft regularly used for human spaceflight are the Russian Soyuz spacecraft and the Chinese Shenzhou spacecraft. The U.S. Space Shuttle fleet operated from April 1981 until July 2011. SpaceShipOne has conducted two human suborbital spaceflights.
Sub-orbital
Main article: Sub-orbital spaceflight
The International Space Station in Earth orbit after a visit from the crew of STS-119
On a sub-orbital spaceflight the spacecraft reaches space and then returns to the atmosphere after following a (primarily) ballistic trajectory. This is usually because of insufficient specific orbital energy, in which case a suborbital flight will last only a few minutes, but it is also possible for an object with enough energy for an orbit to have a trajectory that intersects the Earth's atmosphere, sometimes after many hours. Pioneer 1 was NASA's first space probe intended to reach the Moon. A partial failure caused it to instead follow a suborbital trajectory to an altitude of 113,854 kilometers (70,746 mi) before reentering the Earth's atmosphere 43 hours after launch.
The most generally recognized boundary of space is the Kármán line 100 km above sea level. (NASA alternatively defines an astronaut as someone who has flown more than 50 miles (80 km) above sea level.) It is not generally recognized by the public that the increase in potential energy required to pass the Kármán line is only about 3% of the orbital energy (potential plus kinetic energy) required by the lowest possible Earth orbit (a circular orbit just above the Kármán line.) In other words, it is far easier to reach space than to stay there. On May 17, 2004, Civilian Space eXploration Team launched the GoFast Rocket on a suborbital flight, the first amateur spaceflight. On June 21, 2004, SpaceShipOne was used for the first privately funded human spaceflight.
Point-to-point
Point-to-point is a category of sub-orbital spaceflight in which a spacecraft provides rapid transport between two terrestrial locations. Consider a conventional airline route between London and Sydney, a flight that normally lasts over twenty hours. With point-to-point suborbital travel the same route could be traversed in less than one hour.[10] While no company offers this type of transportation today, SpaceX has revealed plans to do so as early as the 2020s using its BFR vehicle.[11] Suborbital spaceflight over an intercontinental distance requires a vehicle velocity that is only a little lower than the velocity required to reach low Earth orbit.[12] If rockets are used, the size of the rocket relative to the payload is similar to an Intercontinental Ballistic Missile (ICBM). Any intercontinental spaceflight has to surmount problems of heating during atmosphere re-entry that are nearly as large as those faced by orbital spaceflight.
Orbital
Main article: Orbital spaceflight
Apollo 6 heads into orbit
A minimal orbital spaceflight requires much higher velocities than a minimal sub-orbital flight, and so it is technologically much more challenging to achieve. To achieve orbital spaceflight, the tangential velocity around the Earth is as important as altitude. In order to perform a stable and lasting flight in space, the spacecraft must reach the minimal orbital speed required for a closed orbit.
Interplanetary
Main article: Interplanetary spaceflight
Interplanetary travel is travel between planets within a single planetary system. In practice, the use of the term is confined to travel between the planets of our Solar System.
Interstellar
Main article: Interstellar travel
Five spacecraft are currently leaving the Solar System on escape trajectories, Voyager 1, Voyager 2, Pioneer 10, Pioneer 11, and New Horizons. The one farthest from the Sun is Voyager 1, which is more than 100 AU distant and is moving at 3.6 AU per year.[13] In comparison, Proxima Centauri, the closest star other than the Sun, is 267,000 AU distant. It will take Voyager 1 over 74,000 years to reach this distance. Vehicle designs using other techniques, such as nuclear pulse propulsion are likely to be able to reach the nearest star significantly faster. Another possibility that could allow for human interstellar spaceflight is to make use of time dilation, as this would make it possible for passengers in a fast-moving vehicle to travel further into the future while aging very little, in that their great speed slows down the rate of passage of on-board time. However, attaining such high speeds would still require the use of some new, advanced method of propulsion.
Intergalactic
Main article: Intergalactic travel
Intergalactic travel involves spaceflight between galaxies, and is considered much more technologically demanding than even interstellar travel and, by current engineering terms, is considered science fiction.
Spacecraft
Main article: Spacecraft
An Apollo Lunar Module on the lunar surface
Spacecraft are vehicles capable of controlling their trajectory through space.
The first 'true spacecraft' is sometimes said to be Apollo Lunar Module,[14] since this was the only manned vehicle to have been designed for, and operated only in space; and is notable for its non aerodynamic shape.
Propulsion
Main article: Spacecraft propulsion
Spacecraft today predominantly use rockets for propulsion, but other propulsion techniques such as ion drives are becoming more common, particularly for unmanned vehicles, and this can significantly reduce the vehicle's mass and increase its delta-v.
Launch systems
Main article: Launch vehicle
Launch systems are used to carry a payload from Earth's surface into outer space.
Expendable
Main article: Expendable launch system
Most current spaceflight uses multi-stage expendable launch systems to reach space.
Reusable
Main article: Reusable launch system
Ambox current red.svg
This section needs to be updated. Please update this article to reflect recent events or newly available information. (August 2019)
The first reusable spacecraft, the X-15, was air-launched on a suborbital trajectory on July 19, 1963. The first partially reusable orbital spacecraft, the Space Shuttle, was launched by the USA on the 20th anniversary of Yuri Gagarin's flight, on April 12, 1981. During the Shuttle era, six orbiters were built, all of which have flown in the atmosphere and five of which have flown in space. The Enterprise was used only for approach and landing tests, launching from the back of a Boeing 747 and gliding to deadstick landings at Edwards AFB, California. The first Space Shuttle to fly into space was the Columbia, followed by the Challenger, Discovery, Atlantis, and Endeavour. The Endeavour was built to replace the Challenger, which was lost in January 1986. The Columbia broke up during reentry in February 2003.
The Space Shuttle Columbia seconds after engine ignition on mission STS-1
Columbia landing, concluding the STS-1 mission
Columbia launches again on STS-2
The first automatic partially reusable spacecraft was the Buran (Snowstorm), launched by the USSR on November 15, 1988, although it made only one flight. This spaceplane was designed for a crew and strongly resembled the US Space Shuttle, although its drop-off boosters used liquid propellants and its main engines were located at the base of what would be the external tank in the American Shuttle. Lack of funding, complicated by the dissolution of the USSR, prevented any further flights of Buran.
Per the Vision for Space Exploration, the Space Shuttle was retired in 2011 due mainly to its old age and high cost of the program reaching over a billion dollars per flight. The Shuttle's human transport role is to be replaced by the partially reusable Crew Exploration Vehicle (CEV) no later than 2021. The Shuttle's heavy cargo transport role is to be replaced by expendable rockets such as the Evolved Expendable Launch Vehicle (EELV) or a Shuttle Derived Launch Vehicle.
Scaled Composites SpaceShipOne was a reusable suborbital spaceplane that carried pilots Mike Melvill and Brian Binnie on consecutive flights in 2004 to win the Ansari X Prize. The Spaceship Company has built its successor SpaceShipTwo. A fleet of SpaceShipTwos operated by Virgin Galactic planned to begin reusable private spaceflight carrying paying passengers (space tourists) in 2008, but this was delayed due to an accident in the propulsion development.[15]
Challenges
Main article: Effect of spaceflight on the human body
Space disasters
Main article: Space accidents and incidents
All launch vehicles contain a huge amount of energy that is needed for some part of it to reach orbit. There is therefore some risk that this energy can be released prematurely and suddenly, with significant effects. When a Delta II rocket exploded 13 seconds after launch on January 17, 1997, there were reports of store windows 10 miles (16 km) away being broken by the blast.[16]
Space is a fairly predictable environment, but there are still risks of accidental depressurization and the potential failure of equipment, some of which may be very newly developed.
In 2004 the International Association for the Advancement of Space Safety was established in the Netherlands to further international cooperation and scientific advancement in space systems safety.[17]
Weightlessness
Main article: Weightlessness
Astronauts on the ISS in weightless conditions. Michael Foale can be seen exercising in the foreground.
In a microgravity environment such as that provided by a spacecraft in orbit around the Earth, humans experience a sense of "weightlessness." Short-term exposure to microgravity causes space adaptation syndrome, a self-limiting nausea caused by derangement of the vestibular system. Long-term exposure causes multiple health issues. The most significant is bone loss, some of which is permanent, but microgravity also leads to significant deconditioning of muscular and cardiovascular tissues.
Radiation
Once above the atmosphere, radiation due to the Van Allen belts, solar radiation and cosmic radiation issues occur and increase. Further away from the Earth, solar flares can give a fatal radiation dose in minutes, and the health threat from cosmic radiation significantly increases the chances of cancer over a decade exposure or more.[18]
Life support
Main article: Life support system
In human spaceflight, the life support system is a group of devices that allow a human being to survive in outer space. NASA often uses the phrase Environmental Control and Life Support System or the acronym ECLSS when describing these systems for its human spaceflight missions.[19] The life support system may supply: air, water and food. It must also maintain the correct body temperature, an acceptable pressure on the body and deal with the body's waste products. Shielding against harmful external influences such as radiation and micro-meteorites may also be necessary. Components of the life support system are life-critical, and are designed and constructed using safety engineering techniques.
Space weather
Main article: Space weather
Aurora australis and Discovery, May 1991.
Space weather is the concept of changing environmental conditions in outer space. It is distinct from the concept of weather within a planetary atmosphere, and deals with phenomena involving ambient plasma, magnetic fields, radiation and other matter in space (generally close to Earth but also in interplanetary, and occasionally interstellar medium). "Space weather describes the conditions in space that affect Earth and its technological systems. Our space weather is a consequence of the behavior of the Sun, the nature of Earth's magnetic field, and our location in the Solar System."[20]
Space weather exerts a profound influence in several areas related to space exploration and development. Changing geomagnetic conditions can induce changes in atmospheric density causing the rapid degradation of spacecraft altitude in Low Earth orbit. Geomagnetic storms due to increased solar activity can potentially blind sensors aboard spacecraft, or interfere with on-board electronics. An understanding of space environmental conditions is also important in designing shielding and life support systems for manned spacecraft.
Environmental considerations
Rockets as a class are not inherently grossly polluting. However, some rockets use toxic propellants, and most vehicles use propellants that are not carbon neutral. Many solid rockets have chlorine in the form of perchlorate or other chemicals, and this can cause temporary local holes in the ozone layer. Re-entering spacecraft generate nitrates which also can temporarily impact the ozone layer. Most rockets are made of metals that can have an environmental impact during their construction.
In addition to the atmospheric effects there are effects on the near-Earth space environment. There is the possibility that orbit could become inaccessible for generations due to exponentially increasing space debris caused by spalling of satellites and vehicles (Kessler syndrome). Many launched vehicles today are therefore designed to be re-entered after use.
Two-car Class 156 'Super Sprinter' DMU 156 480 rumbles through Kirkby-in-Furness station, a deserted request stop, whilst forming Northern Rail's 07.41 (SaO) Barrow-Sellafield service. @07.52
Some of these serious gentlemen hold metal tools and on the desk I can see metal pikes of different size and shape. In the open boxes I can make out various accessories and elecrical switches.
According to the clamp, the man on the left is holding, I assume that the devices are probably lightning arresters. But any other idea is welcome!
[Germany, unidentified photographer, 1910-1920?]
Launch Lake Wallis at completion of the hull (1940/41); she was brought around from the beach on a cradle and launched near the main Tuncurry wharf. The tug assisting is believed to be the Forster; Henry Miles (with hat) on deck and Harry Avery (braces) assisting.
Other images of the Lake Wallis can be found in the Album Lake Wallis
The ferry Lake Wallis operated out of Forster for a long period and was well-known to both holidaymakers and schoolchildren as she plied the waters of Wallis Lake.
UPDATED OCTOBER 2018
Lake Wallis built by Harry Avery
Recent information supplied by Peter Emmerson, son of Albert CARL Emmerson, indicates that his father had the Lake Wallis built specifically for use on Wallis Lake by John Wright & Co. Ltd's chief shipwright, Harry Avery. Commenced circa 1940 and launched circa 1941/2 she was built prior to the time when Wright's shipyard was contracted to building a large number of vessels for the US Army and the Australian Army. While the timbers used in construction are unknown, the planking was of White Beech (Gmelina leichhardtii) sourced from the Comboyne Plateau.
From the images provided by Peter Emmerson it is clear that the hull was completed with timber frame to allow later finishing as a ferry; she was taken by cradle further upstream to an area adjacent to the Tuncurry coal-loader.
Albert CARL Emmerson fits out the Lake Wallis
It appears likely that Carl Emmerson bought the hull only and fitted her with steering gear and a 2 cyl. J2 Kelvin Diesel with petrol assist start. Petrol and spark plugs was used ignite the chamber and thus assist the flywheel to turn; this was an essential component of the starting procedure in cold weather. Carl fitted out the launch with anything that was available. In 1943, equipment and components were unavailable with invasion by Japanese forces appearing almost inevitable. Carl's innovative approach included using the steering wheel of an old Dodge truck. The new launch, named the Lake Wallis replaced his previous launch the ex-cream boat Dorrie May.
Carl Emmerson obtained a Special Lease to build a wharf on Wallis Lake and operated the Lake Wallis as the official mail boat, passenger ferry, delivery launch and later for excursionists. Carl operated his launch service at 9 am Monday, Wednesday and Friday (3h return trip). From Forster the launch travelled to Green Point (Lach Fraser’s dairy); then South to Charlotte Bay Creek then NW to Whoota; then to Coomba Park (Beddington’s) then to Sointu's wharf (John Sointu and Ida Niemi) on the SW side of Wallis Island and finally back to Forster. On the other days he operated his bus service to Elizabeth Beach, Booti Booti, Charlottte Bay and back to Forster. Carl also delivered boxes of butter from the Cape Hawke Co-operative Butter factory in Tuncurry to stores in Forster, three days a week.
Carl Emmerson starts tourist trips around Wallis lake
After the War, when people were again able to travel, Carl commenced a tourist operation taking visitors around the extensive Wallis Lake. His wife, Mollie, acted as deckhand and morning tea maker - pleasing everyone with her home-made shortbread biscuits.
In 1967 Carl sold his entire operation (including the Lake Wallis, the Special Lease, the established tourist route and wharf facilities to Stan Croad.
Stan Croad
The Master of the Lake Wallis from 1967 was Stan Croad, both a ferryman and film operator at the Regent Theatre in Forster. Stanley Osbourne Croad was born in Kempsey in 1912 and moved to Forster around 1937 when the Regent Theatre opened and he commenced work as film operator.
Prior to purchase of the Lake Wallis he operated a launch - name unknown. In 1944, newspaper reports show that Stan had secured a contract to transport schoolchildren from areas around Wallis Lake to Forster. In 1946 he sought a Special Lease from the Lands Board Office to operate his launch service, “carrying school children to and from school per motor launch, and conducting scenic tours of Wallis Lakes” - as indicated by this notice in the Northern Champion.
“It is notified in the Government Gazette of 19th and 26th September and 3rd and 10th October, 1947, that application has been made by Stanley Osbourne Croad, for Special Lease No. 47/37, Land District of Taree, for Jetty, containing about 2 perches below high water mark of Wallis Lake at Forster, between portions 297 and 343 and south of and adjoining the area applied for as Special Lease 46/62 (The Northern Champion (Taree, NSW: 1913 - 1954 Sat 11 Oct 1947).
Croad operated from Emmerson's Lease 38/21 post 1967 but the precise details of his earlier operation is unknown: According to Carl's son, Peter, the relationship between Carl Emmerson and Stan Croad was not a happy one. It was Stan Croad who replaced the Kelvin J2 diesel with the more powerful Lister diesel motor.
In 1975 the Wallis Lake was registered to carry 39 persons and provide life-saving devices for 18 persons. She was described only as 29 ft 3 inches long and only licenced to travel on CAPE HAWKE HARBOUR – Smooth Water only. Graeme Andrews recorded her dimensions as 9 ft 10 inches breadth and 5.3 tonnes.
AFLOAT MAGAZINE ARTICLE
The best description of Stan’s operation was published in the magazine AFLOAT. It was written by Graeme and Winsome Andrews in 1976. Excerpts are included below:
“Stan Croad of Forster is a throw-back. In 1976 he is probably the last of the travelling storemen who once could be seen on most of Australia’s waterways. These water-borne carriers could be found on any river. They brought stores and religion. They collected produce outbound and replaced it with passengers inbound.
Stan still does something like that. Along with his tourist passengers he carries beer, bread, mail and vegetables and at various wharves around the lake he is met by the locals. Meanwhile his passengers watch the process with interest, probably unaware of just what they are watching.
Stan’s small well-deck ferry Lake Wallis is one of the last of the small working craft of the Forster area, her lineage goes back to the time when Forster was a thriving coastal shipping port. The days of the small ferry are numbered as Forster’s population is increasing and new waterfront businesses are growing, along with bigger, faster and more obvious cruise boats. Stan reckons he will not be able to compete but he and his little boat might last long enough, particularly as her shallow draft allows her to reach places out of bounds to bigger craft.
In 1976 only one other boat competed with Stan for the tourist trade. The ex-river milk boat Sun with her liquor license and great size carried a different load to Stan and their paths rarely crossed. [In 2016 Sun is based in Brooklyn on the Hawkesbury River and services Dangar Island and the settlements such as Little Wobby.]
Stan collects his goods and passengers from almost the heart of Forster. The trip is advertised as starting at 0900hrs but Lake Wallis and her amiable Master are no longer young and not in any hurry. The ferry seems to have been built about 1944. She carries up to 38 passengers with a crew of one. A Lister diesel can give her about eight knots but six or seven will do her unless the wind and the lake look like whipping up. When we travelled with Stan he was contemplating buying a newer and bigger boat but was bothered that this would mean he would have to increase his prices.
At about 0920 the Lister rumbles into life and Lake Wallis moves away from her berth with perhaps 20 adults with a dozen or so kids. Passengers and crew are seated low in the hull. She is like an old private launch with the engine covered by a large flat-topped box, slap in the middle of the boat.
Nearing the Forster - Tuncurry Bridge the launch swings sharply to port and skirts a steep sand island where kids are sliding down the sand dune to end up with a great splash. The launch crosses the next channel past low-lying Cockatoo Island towards the ‘Cut’ which is the entrance to the Wallamba River. A considerable tidal outflow can be felt there and the Lister picks up a few revs to cope. Stan has done this many times but he still keeps his ship’s head lined up on the various official and local knowledge navigation markers and piles.
Along the top of Wallis Island the ferry plods. In the area between Regatta Island and Wallis Island the local people once held picnic regattas. Paddle steamers, early motor launches and sail craft of all types – private and commercial- competed in picnic races while the families ashore tucked into the goodies and egged on the contestants.
At Coomba, a hamlet on the western shores of Wallis Lake, a small jetty pokes out from the shore. Here a cluster of people await their purchases. A run-down public toilet attracts some sighs of relief from some of the intrepid passengers. Coomba was to be a glamour development but something went wrong and the 20 or so homes house retirees in considerable peace. Stores and money change hands and Lake Wallis backs carefully out into the channel and heads onwards.
On the south-western end of Wallis Island is a grand and remarkable two-storey house. It is obviously old and apparently houses a Finnish family who have crops, cattle and the obligatory sauna. Their ‘wharf’ consists of the remains of the steam paddle lighter, or ‘drogher’ Queen. About 40 m long by 10 or 12 m wide, this craft is a wooden boat enthusiast’s dream. Much of the exposed timber remains showing grown timbers and adzed wood working. Stores and monies change hands and off we go again.
Out in the middle of the lake the Lister’s muted growl suddenly fades into silence. Skipper Croad puts down his microphone, takes off his Captain’s hat and replaces it with a chef’s hat. A white apron mysteriously appears, while from a large white locker, good china cups and saucers appear. Within a few minutes Stan is passing around, via the ladies, cups of very hot tea or coffee, biscuits for those that want them and scones for those who prefer. The children get cold soft drinks and or cordial.
As the boat drifts Stan tells us more about the lake, his boat and of the locals. Fifteen minutes after ‘Tea-Oh!’ the diesel awakes, tea remnants disappear into the locker, the tablecloth leaves the top of the engine box and we press on somewhat refreshed and impressed.
The homeward, northward run takes us into shallows. Clumps of weeds slide past close to the hull and Stan keeps his eyes on his marks. He tells us about ‘The Step’. Between the mainland at Wallis Point and Wallis Island is a sand bank known as ‘The Step’. Here the incoming tide rolls over the edge of the Stockyards Channel and forms a sand ‘lip’. Here it is that deeper-draft vessels baulk but the little launch slides up and over, the Lister going flat out. All aboard feel the bow then the rest of the boat lift and then drop as we bump into deeper water. Lake Wallis has nearly completed her run.
She swings to starboard off the rarely-used airfield on Wallis Island and heads down Breckenridge Channel. Past Godwin Island Stan swings to starboard and eases in towards his pile berth. Lake Wallis’s stem settles into the low-tide shore-line mud as Stan secures his berthing lines before waving us ashore over a plank that is strong enough but makes one wonder anyway. Stan makes his personal farewell to every person leaving and then, as we straggle away, turns to and cleans up his place of work.
Stan Croad and his comfortable little launch provided one of the best-value tourist dollars the Grey Wanderers have ever had. More than 30 years later we sometimes talk of him, wondering what became of him. Perhaps one of Afloat’s amazing knowledgeable readers can complete the tale?
A more recent publication by the Coomba Progress Association describes Stan as follows:
“For many years people in Coomba had relied for mail delivery on the services of men like Stan Croad, who had operated excellent ferry services, and delivered so cheerfully and willingly not only their basic needs, but would even shop and bring back a grocery order without charging for this extra service.
Stan Croad sold his operation in 1978 to William and Noni Coombe who only ran the Lake Wallis for a couple of times when they replaced her with the younger and larger vessel - Amaroo. Matt Coombe, William Coombe's son noted "This paved the way for bigger and better vessels, all given the prestigious name of ‘Amaroo’" Manning-Great Lakes Focus BLOG 1st June 2010
Stan died in 1994.
Acknowledgements: We would like to thank Graeme and Winsome Andrews for their contribution and AFLOAT magazine for allowing us to extract a large part of the material in Tea and Scones on Lake Wallis in 1976
Image Source: Peter Emmerson
All Images in this photostream are Copyright - Great Lakes Manning River Shipping and/or their individual owners as may be stated above and may not be downloaded, reproduced, or used in any way without prior written approval.
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DSC07480 - Let's just say I am happy with my current camera and lens. Had a split second to make this image, in-between people passing by. Really enjoy the bright, soft on the left, and the dark, hard on the right.
Done from the hip, looking down on tilt screen. No time to bring up to eye level. I also think the slightly lower point of view work well.
Advertising Copy for This Device: Genuine help to be derived, under certain bodily conditions, from the intelligent use of a medical electric battery.
The Minx is a very significant car for Coventry, being the Ford Focus or VW Golf of its day. This particular Minx is quite rare because it has the Easidrive automatic gearbox system.
This car was donated by Irene Taylor. Irene used it daily until 1994. It was then stored in her garage until acquired by the Museum in 2012.
A sculpture of a man with an ankle chain which has a mobile phone shaped block attached to it (not visible in this image). The artist's brief: The price of always being connected is -always being connected. All pervasive mobile communication has blurred the boundaries of our work and personal lives; maintaining an online presence cuts into the time we have for people in the real world; and privacy is almost a thing of the past. In the guise of making our lives easier, communications technology has come to control and define our every waking moment and ironically social networking has been shown to make users feel more alienated than ever. Be careful what you wish for!.
David McGuinness
Mixed media, paint, perspex, solar lights. Swell Sculpture festival
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Current in-use cellular devices as of January 2017.
L-R:
iPhone 6s 128gb on grandfathered AT&T unlimited plan
iPhone 7 128gb on grandfathered Verizon unlimited plan
Google Pixel 128gb on grandfathered Verizon unlimited plan
Google Nexus 5x 32gb on Project Fi
The iPhone 7 was probably my worst tech purchase of 2016. Totally not worth it. Add to the fact that I made the mistake of lining up for hours in SF on launch day at the snarkier-than-most Apple store there and I can't help but shake my head at it. Seriously Apple, how do you still suck at pre-orders? Oh right, it's good press when you have people lined up outside, so there's no real incentive to improve that disaster. I've already liquidated all of my shares of AAPL given the "progress" of the company with its most recent devices. My complaints with the iPhone 7? The haptic home key is a nightmare - particularly with gloves when it doesn't register a press. The lack of a headphone port wasn't something I thought would matter since I don't use headphones with my phone, but it's actually hugely inconvenient (found this out when I couldn't hook up a microphone for audio capture). As a "major" update, it's just a wholly unimpressive device. People tout their iPhone/whatever cameras and how great they are all the time. The camera on the iPhone 7 is an improvement over that of the iPhone 6s, which I appreciate - I always have my phone with me so it's the camera that's always with me. That said, I have a collection of dSLRs, film cameras and a Leica digital rangefinder, so it's hard for me to really say that the camera on my phone is "amazing." The iPhone 7 Plus' camera, on the other hand, is very good. But I don't do phablets, so no dice for me.
As part of the battery recall, I got a refurb iPhone 6s recently that replaced my launch day iPhone 6s. I am very happy with my iPhone 6s.
The Google Pixel replaces a Samsung S6 Edge that I never got around to rooting and putting a cleaner ROM on. Samsung's bloatware is rubbish. I really like the S6 Edge - it's a good size and a nice device. The curved screen is a total gimmick to me - a curiosity that has little real-world value. Worse, you have to hold the phone in a particular way so that you aren't accidentally registering a press on the sides of the device. With a less bloated ROM and a better cadence of software updates from Verizon, I would have happily stayed with the S6 Edge. That said, I wanted to give the Pixel a go, and I'm glad I did. This device is fantastic. I haven't really taken any photos with its camera, so no comment on that yet. Google's deep integration - while slightly creepy - is handy. "Live" security patches and timely updates are great. Did you know that you can use the Pixel as a battery pack to charge other devices? Cool. I didn't start using Android devices at all until the S6 Edge, so I'm not as heavily invested in that ecosystem as I am in Apple's, but from what I've seen so far, I like it.
The Nexus 5x is my international travel phone and was purchased via Google with a Project Fi SIM. Having data and SMS and voice if I really need it right when I land is a godsend. The extra data-only SIMs that Fi provides for free are fantastic - I have one in an unlocked hotspot device and another in an iPad. I use the Nexus 5x for Google Maps and tethering while abroad, and never use it while stateside. For ~$22 a month when I'm at home and not using data, it's a great deal for me.
So I got my hands on the prototype Portal gun at the New York Toy Fair this morning. I was told it would be closer to $150, not $120, and it’ll be ready mid to late this year. They’re not sure yet where it will be sold, but Toys R Us was mentioned as a possibility. It’s satisfyingly large, the handle feels good and the thumb toggle to change from orange to blue and back is intuitive, the trigger is a trigger… nothing to get excited or upset over. It feels cheap. It looks cheap. But it also looks easy to dismantle for bulking up and repainting to improve. Honestly, I sort of feel that for the price that shouldn’t be needed, but I can deal with it. This one is not the finished product though, they will at least paint that inner core bit that should be black. Also the orange will be as bright as the blue and the sound effects which were weak should be louder and clearer. I wouldn’t say I’m disappointed, as I expected such flaws, so I’ll still be picking one up. But I can see a lot of unhappy fans that want perfection. Then again, considering the other game replica weapons I’ve seen, and for something this size with lights and sounds, the price is not bad and the cheapness is tolerable to make the price slightly more reasonable.